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The PARKER PQ-00015 is a brass hydraulic hose coupler designed for high-pressure fluid transfer applications. It features a 1/2-14 NPTF thread and accepts an 8 mm hose size with a 1/2-inch hose diameter. Rated to 3,500 psi, this coupler is built for demanding hydraulic circuits where a reliable, leak-resistant connection is essential. The NPTF thread form creates a dry-seal mechanical connection without relying solely on thread sealant. Licensed plumbers, pipefitters, and hydraulic system technicians are the typical installers. Each package includes two couplers.
This coupler suits residential and commercial hydraulic systems where a compact, threaded brass fitting is required at a hose termination point. It is appropriate for use in power units, cylinder circuits, mobile equipment hydraulics, and other fluid power assemblies operating within its rated pressure envelope. The 1/2-14 NPTF thread size is a widely used standard in North American hydraulic and fluid power plumbing, making this coupler a common replacement or expansion fitting on existing systems.
Designed as an OEM-style replacement or addition for hydraulic hose assemblies requiring an 8 mm, 1/2-inch hose diameter coupler with a 1/2-14 NPTF thread connection rated to 3,500 psi.
Installation should be performed by a qualified pipefitter, hydraulic technician, or licensed plumber familiar with fluid power systems. Depressurize and isolate the hydraulic circuit completely before disconnecting any fittings or hose assemblies. NPTF threads are designed to seal mechanically, but applying a compatible thread sealant per the system manufacturer's guidelines is recommended practice. Verify the installed assembly holds rated pressure before returning the system to service.
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